Help with Contact Us Form

Hello All

I am new to the website design world. I need some help with a "contact us" form. Using the post method I am trying to have the results sent to two email address at the same time. Help! here is the code that I am using now.

Thanks for your help
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<form method=post

action="http://us.1.p8.webhosting.yahoo.com/forms?login=USER NAME&to=SECOND EMAIL ADDRESS@DOMAINNAME.net">

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Do you have control over the form handler that is supposed to process this form? If so, how is it implemented?